Mutate Green and Growing, Mutate Sanctuary into Green and Growing (Green and Growing +35% to all life attacks since life is weaker like ice. Looks same.)
Mutate Death Dominion, Mutate Doom and Gloom into Death Domion, (+35% to all death attacks or steals. Looks same.)
Mutate Dry Desert, Mutate Power Play into Dry Desert (+35% to all balance attacks. Looks same.
Mutate Green and Growing, Mutate Sanctuary into Green and Growing (Green and Growing +35% to all life attacks since life is weaker like ice. Looks same.)
Mutate Death Dominion, Mutate Doom and Gloom into Death Domion, (+35% to all death attacks or steals. Looks same.)
Mutate Dry Desert, Mutate Power Play into Dry Desert (+35% to all balance attacks. Looks same.
1) Life already has an Attack Bubble. You get it from the Giant Spider pet in MS's pet shop. Life's Attack All is more powerful than Ice's spells. Life's Centaur is more powerful than Ice's Colossus.
As for other spells - Trick Blade - Mutate Charm into Trap
Mutate Shield - Mutate Tower Shield into Mirror Shield - Reflect next incoming Damage / Sap spell at Caster
Colossal - +275 (TC +300)
Meditate - Mutate Heal spell into Mana restoring spell
Duplicate - Place on Charm or Ward to get 2 of the charm/ward's effect (2 Myth Traps, 2 Spirit Traps, 2 Blades, etc.)